The Amalgamated Society of Whitesmiths formed in 1889 as the General Smiths, Fitters, Bellhangers and Whitesmiths Association though its membership was always only between about 200 to 300. It changed its name to the Amalgamated Society of Whitesmiths, Domestic Engineers and General Pipe Fitters and soon after, in 1908, it amalgamated with the Birmingham Society of Hot Water and Steam Engineers and the United Society of Fitters and Smiths to become the National Union of Operative Heating and Domestic Engineers and General Iron Workers (for which see separate entry for DP/161/7-40) (Marsh & Ryan, Historical directory of trade unions, ii, p.103).
From the guide to the Papers of the Amalgamated Society of Whitesmiths (Hull Branch), 1901-1918, (Hull University, Brynmor Jones Library)
